internal override void Refresh()
{
if (IsConnected())
{
try
{
while (true)
{
int ret = li.ibrd(Dev, Response);
int asize = li.ibcnt;
int size = li.ibcntl;
if (Response[0] != 0x00)
{
string t = "";
for (int i = 0; i < Response.Length; i++)
{
if (Response[i] == 0x00)
{
break;
}
try
{
char l = Convert.ToChar(Response[i]);
if (i == 0)
{
Response[0] = 0x00; //clear flag
}
t = t + l;
if (l.ToString().IndexOfAny(filter) < 0)
{
Util.SysLog("invalid char" + l.ToString());
throw new Exception("invalid char" + l.ToString());
}
DataRecieved(this, l.ToString());
}catch {
Util.SysLog("ECHO");
Thread.Sleep(200);
Send("ECHO\r\n", true);
break;
}
}
Util.SysLog("Rcv:" + t);
ResetResponse();
}
else
{
break;
}
}
}
catch (Exception ex)
{
Util.SysLog("GPIB Refresh:" + ex.Message + ex.StackTrace);
ResetResponse();
}
}
}
internal string Read()
{
if (IsConnected())
{
try
{
string ret = "";
int size = li.ibrd(Dev, out ret, 2000);
if (ret.Length > 1)
{
Logger.Log(ret);
}
return(ret);
}
catch
{
return("");
}
/*
* int ret = li.ibrd(Dev, Response);
* int asize = li.ibcnt;
* int size = li.ibcntl;
*
* if (Response[0] != 0x00)
* {
* string t = "";
* for (int i = 0; i < Response.Length; i++)
* {
* if (Response[i] == 0x00)
* break;
* char l = Convert.ToChar(Response[i]);
* if (i == 0)
* Response[0] = 0x00; //clear flag
*
* t = t + l;
* if (l.ToString().IndexOfAny(filter) < 0)
* {
* Util.SysLog("invalid char" + l.ToString());
* throw new Exception("invalid char" + l.ToString());
* }
* }
* Util.SysLog("Rcv:" + t);
* ResetResponse();
* return t;
* }
*
* }
* catch (Exception ex)
* {
* Util.SysLog("GPIB Refresh:" + ex.Message + ex.StackTrace);
* ResetResponse();
* }*/
}
return("");
}
//read data form device
public string GPIBrd(int buffersize)
{
try
{
li.ibrd(Dev, out ValueStr, buffersize);
li.ibclr(Dev);
return(ValueStr);
}
catch (System.Exception Ex)
{
throw new Exception("Error: " + Ex.Message + //error Name
"ibsta = " + li.ibsta + //ibsta
"iberr = " + li.iberr + //iberr
ErrorMnemonic[li.iberr]); //error code
}
}